Tuesday night's most-watched show, CBS' "NCIS," gained some ground in the key young-adult demographic, as NBC's "The Voice" was slightly more subdued this week, according to preliminary numbers from Nielsen.

The popular CBS series averaged 17 million viewers overall and scored a rating of 2.5 among advertiser-desired 18- to 49-year-olds, up 14% from its last original airing two weeks ago. The episode was just two-tenths of a point behind 18-to-49 leader "The Voice," which fell 4% week-to-week to a 2.7 in the demo.

CBS won the night in total viewership and in the 18-to-49 demographic, in which a rating point equals about 1.3 million viewers, helped by gains from "NCIS" and "Person of Interest" -- up 6% to a 1.9 -- and a status quo delivery from "NCIS: Los Angeles" at a 2.1. On average, CBS drew 14.3 million viewers in prime time and a 2.2 among young adults.

Following "The Voice," NBC's "About a Boy" earned a 1.7, down 11% from last week, though "Growing Up Fisher" held steady at a 1.5, where it's been for four weeks. "Chicago Fire" gained 6% for a 1.9.

On ABC, "Marvel's Agents of S.H.I.E.L.D." came in flat with a 1.9 in the demo, while the 1980s-set comedy "The Goldbergs" registered a 1.4, up 14% week-to-week. "Trophy Wife" also improved, adding a tenth of a point for a still-low 0.9, but "Celebrity Wife Swap" continued to flounder, down 11% to a 0.8.

Fox had a mixed night with its comedies. "Mindy Project" rose a bit from last week to a 1.1 in 18-49, eclipsing its lead-in "New Girl." That Zooey Deschanel sitcom dropped 17% for a 1.0, following another weak showing from "Glee," which notched a 0.8.

In fact, a rising "Originals" on CW tied "Glee" in 18-49. The CW "Vampire Diaries" spinoff had its most-watched night in seven weeks, with 1.7 million people tuning in. "Supernatural" rose 11% week-to-week to a 1.0 in 18-49.

After 10 people were shot — seven of them in one incident — overnight in Baltimore following the city's most violent month in decades, police announced Sunday that 10 federal agents will embed with the city's homicide unit for the next two months.

Interim Baltimore Police Commissioner Kevin Davis announced a reorganization of the department in an email to police Saturday night, formally promoting or moving 28 people into new roles and undoing some changes made by his predecessor Anthony W. Batts.